FOUND BATTERY FAILED LOAD TEST. REPLACED BATTERY AND RETESTED THE CHARGING SYSTEM. FOUND CHARGING SYSTEM HAS VOLTAGE SPIKES RANGING FROM 11.7 V TO 14.1V. RECOMMEND REPLACING THE BATTERY AND ALTERNATOR PRIMARILY THEN RETEST THE SYSTEM.

REMOVED AND REPLACED THE BATTERY AND ALTERNATOR. RESET ALL ACTIVE CODES AND RECHECKED THE CHARGING SYSTEM. ROAD TESTED THE VEHICLE AND IS OPERATING NORMAL AT THIS TIME.NO FURTHER VOLTAGE SPIKES AND TRANSMISSION IS SHIFTING GOOD